Xantrex Technology GPIB-XPD manual Bit Decimal Description Reset By Position Weight, Lsb, Msb

Operation

GPIB Operation

Serial Poll In a serial poll, the controller polls each device.

Example:

ibrsp Return serial poll byte.

The power supply responds with a 8-bit status byte defined as follows:

Table 3.2 Serial Poll Status Register

Bit		Decimal	Description	Reset By
Position		Weight
0	(LSB)	1	Fault - Set when any bit in the fault	FAULT? query to reset
			register is set by a fault condition in the
			supply. See also “Accumulated
			Status, Status, and Fault Registers”
			on page 46.
1		2	Not used
2		4	Not used
3		8	Not used
4		16	Ready - Set when power supply is	Power supply, during
			ready to accept commands.	command processing
				period
5		32	Error (ERR) - Set when ERR bit	ERR? query
			asserted in status register. See also
			“Accumulated Status, Status, and
			Fault Registers” on page 46.
6		64	Request Service (SRQ) - Set when	Serial Poll
			power supply requests service.
7	(MSB)	128	Power On (PON) - Set when unit	CLR or Device Clear
			initializes at power on.

32 Operating Manual for GPIB for XPD Series Power Supply